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keywords: Quantum dots, FRET, photochromism, internal standard, ratiometric imaging
dc.Type: rapid-communication
dc.Title: Modulation of a Photoswitchable Dual-Color Quantum Dot containing a Photochromic FRET Acceptor and an Internal Standard
title: Modulation of a Photoswitchable Dual-Color Quantum Dot containing a Photochromic FRET Acceptor and an Internal Standard - Nano Letters (ACS Publications)
dc.Identifier: 10.1021/nl301093s
dc.Publisher: American Chemical Society
dc.Language: EN
fb:app_id: 121948137886736
dc.Description: Photoswitchable semiconductor nanoparticles, quantum dots (QDs), couple the advantages of conventional QDs with the ability to reversibly modulate the QD emission, thereby improving signal detection by rejection of background signals. Using a simple coating methodology with polymers incorporating a diheteroarylethene photochromic FRET acceptor as well as a spectrally distinct organic fluorophore, photoswitchable QDs were prepared that are small, biocompatible, and feature ratiometric dual emission. With programmed irradiation, the fluorescence intensity ratio can be modified by up to ?100%.
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dc:title: Modulation of a Photoswitchable Dual-Color Quantum Dot containing a Photochromic FRET Acceptor and an Internal Standard - Nano Letters (ACS Publications)
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dc.Creator: Sebastián A. Díaz
dc.Date: June 4, 2012
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dc.Coverage: world
dc.Subject: Quantum dots; FRET; photochromism; internal standard; ratiometric imaging
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